Most of people still didn't get it. CPython 3.x is good enough for its purpose and its goals. It's evolving according to its philosophy (http://www.python.org/dev/peps/pep-0020/) and it is really really good (If you understand some general principles like The Middle Way, Being Good Enough, Divide Et Impera and so on).
Making things too complicated is as bad as making them naively oversimplified. ^_^ And porting everything to JVM is just some kind of sport.
Being simple extendable and at the same time close enough to a hardware and using optimizations provided by an OS is much better.